1st Album: Believe
Released Date: October 19, 2004

01. Intro
02. 사랑은 가질 수 없을 때 더 아름답다 (Love Is More Beautiful When You Can't Have It)
03. Caught My Eyes
04. 부탁해 (I Request)
05. 혼자 남겨지는건... (Staying Single)
06. Round & Round
07. Blue Sky
08. Somewhere Someone
09. TKO skit
10. She Is The One (Feat. Seven (Da Crew), Hyunmoo (Trespass) & TKO )
11. 어떻게 내가 (How Do I) (Feat. Kim Jo Han)
12. Up Front!
13. 사랑은 가질 수 없을 때 더 아름답다 (Love Is More Beautiful When You Can't Have It) (Instrumental)


1.5 Album: Behind the Clouds
Released Date: November 2005

01. 촌스럽게 (Behind The Clouds)
02. 널 사랑한게 죄겠지 (It Was a Crime To Love You)
03. I'm Sad
04. Blue Sky (Active Electro Remix)
05. Somewhere Someone (Coldfeet ReMix)
06. Caught My Eye (Beat's 2-Step Go-Clubbing Edit)
07. 촌스럽게 (Behind the Clouds) (Instrumental)


2nd Album: Yutzpracachia's Love
Released Date: April 14, 2006

01. 유추프라카치아 (Yutzpracachia's Love)
02. Aisha
03. 기억해... 사랑해
04. Am Sad (Matsunaga Mastering Ver.)
05. Lady, Enough To Cry
06. Player
07. 함께 있어 좋은 사람 (Feat. May)
08. 어디선가 나의 노랠 듣고 있을 너에게 (Acoustic Piano Ver.)
09. Automatic
10. 그녀 내게 걸어 오네
11. 내 안에 그녈 기다리며
12. 촌스럽게 (Matsunaga Mastering Ver.)
13. I Am Sad (Instrumental)


Untold Story
Released Date: May 31, 2007

CD 1
01. Freeway
02. Singing that melody - feat. SAT
03. 못난 남자
04. 사랑은 가질 수 없을 때 더 아름답다 (New Arrangement Ver.) - feat. Miryo (from Brown Eyed Girls)
05. 우두커니(Inst.)
06. Freeway(Inst.)
07. Singing that melody (Chorus Ver.)
08. 못난 남자 (Inst.)
09. 못난 남자 (Orchestra Ver.)

DVD 1
01. Singing That Melody - Director / Hwang Soo Ah at August (Music Video)
02. Recording Making Video - Director / Huh Nam Hoon
03. Photo Shooting Video
04. Music Video Making Video
05. Special Interview


Look Blank
Released Date: April 37, 2008

01. 지갑
02. 우두커니
03. 그리움도 고마워
04. 지갑 (Saxphone Edit Ver.)
05. 지갑 (MR)

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